Customize Shopify Store - Multiple Projects/Hourly Rate

I have several changes I need to make to a shopify store. I'm using the "CLEAN" theme right now. 1) I need to make it possible to have multiple iterations of a product on one product page with an "Add to Cart" for each, similar to this example: [login to view URL] 2) I need to make a large registration page similar in complexity to this: [login to view URL] This will be a company registration page, which will be in addition to the customer registration page. 3) I need minor edits to the template, such as moving where prices appear. 4) There may be a few other projects that arise, but for now assume that is all. I will do all the decoration and formatting. I just need someone to do the back-end work. I don't want to do any of the CSS/HTML work at all, so anything that needs to be done I will bump along to you. Please respond with your hourly rate and an estimation of the duration it will take to complete the projects I've shown here. As the project moves on we might add hours but assume this is all for now.